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HBS Unit 4 Key Terms

Terms in this set (79)

Abduction
Movement away from the midline of the body
Adduction
Movement toward the midline off the body
Articular cartilage
Hyaline cartilage attached to articular bone surfaces
Articulation
The action or manner in which the parts come together at a joint
Ball and Socket Joint
An articulation (as the hip joint) in which the rounded head of one bone fits into a cuplike cavity of the other and admits movement in any direction
Cartilage
A usually translucent somewhat elastic tissue that composes most of the skeleton of vertebrate embryos and except for a small number of structures (as some joints, respiratory passages, and the external ear) is replaced by bone during ossification in the higher vertebrates.
Circumduction
A movement at a synovial joint in which the distal end of the bone moves in a circle while the proximal end remains relatively stable
Dorsiflexion
Bending the foot in the direction of the dorsum (upper surface)
Extension
An unbending movement around a joint in a limb (as the knee or elbow) that increases the angle between the bones of the limb at the joint
Flexion
A bending movement around a joint in a limb (as the knee or elbow) that decreases the angle between the bones of the limb at the joint
Goniometer
An instrument for measuring angles (as of a joint or the skull)
Hinge joint
Joint between bones (as at the elbow or knee) that permits motion in only one plane
Hyaline Cartilage
Translucent bluish white cartilage consisting of cells embedded in an apparently homogeneous matrix, present in joints and respiratory passages, and forming most of the fetal skeleton
Joint
The point of contact between elements of an animal skeleton whether movable or rigidly fixed together with the surrounding and supporting parts (as membranes, tendons, or ligaments)
Ligament
Dense regular connective tissue that attaches bone to bone
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